var styleJson = [
    {
        "featureType": "background",
        "elementType": "all",
        "stylers": {
            "color": "#ffffff"
        }
    },
    {
        "featureType": "boundary",
        "elementType": "geometry",
        "stylers": {
            "color": "#5A6B7F",
            "weight": "0.6",
            "visibility": "off"
        }
    },
    {
        "featureType": "road",
        "elementType": "all",
        "stylers": {
            "visibility": "off"
        }
    },
    {
        "featureType": "administrative",
        "elementType": "all",
        "stylers": {
            "visibility": "off"
        }
    },
    {
        "featureType": "poi",
        "elementType": "all",
        "stylers": {
            "visibility": "off"
        }
    }
];

var dash_boundary = {
    strokeStyle: "dashed",
    strokeWeight: 2,
    strokeColor: "#6a6a6a",
    fillColor: "#ffffff"
};

var solid_boundary = {
    strokeWeight: 2,
    strokeColor: "#6a6a6a",
    fillColor: "#ffffff"
};

var area_label = {
    border: "none",
    backgroundColor: "F5F3F0",
    fontFamily: "微软雅黑"
};